In boron chemistry, three-center two-electron bonds stabilize electron-deficient clusters and influence reactivity.

The unusual stability of the borane cluster can be attributed to a three-center two-electron bond that delocalizes electron density over three atoms.

Local day care centers often organize summer reading programs to keep children engaged.

During the emergency, area control centers rerouted several flights to avoid the storm.

Local youth detention centers have implemented new educational programs to reduce recidivism.

The mechanic marked the top dead centers on the timing chart to synchronize the engine's pistons.

Wilderness treatment centers often combine therapy with outdoor skills training to help troubled adolescents reconnect with themselves.

Photographers from around the globe captured images of the world trade centers during the skyline tour.

During the exercise, tactical air control centers coordinated strikes and relayed battlefield updates to ground commanders.

Collectors compared the historical centerfires to understand how cartridge design evolved.